Receiver principle

The general receiver at work is the use of electromagnetic inductance action principle, namely a placed in permanent magnetic field in the coil to voice signal, the interaction force generated in the coil, rely on the force to drive the receiver cone vibration sound. This coil, which is placed in a permanent magnetic field, is called "voice coil". < br/> in addition to a high voltage electrostatic type receiver, it is in between the two is closer to the conductive film with high electrical speech signal, to make the two conductive film vibration due to the action of electric field force, to promote the air around the vibration, so as to sound. The receiver now used more and more in the mobile phone.